Snake venom is a complex mixture of toxins used primarily to immobilise and sometimes initiate digestion of prey.
Signs suggestive of severe envenomation may be the confirmation of a dangerous snake bite, rapid development of local blistering or bruising, persistent bleeding or spontaneous bleedings, lethargy, muscle weakness, convulsions, etc.
Diagnosis is made by clinical history, physical examination and by specifying the geographic region. Some laboratory kits are available to help identify the type of venom.
First aid includes keeping the patient in a safe area, where he/she is calm and at rest, removing jewellery or footwear from the affected limb, immobilising the injured body part and applying a pressure bandage. Subsequent transfer to the nearest appropriate medical facility where the necessary supportive measures will be applied and the appropriate antidote will be administered along with tetanus vaccination.
- Julian White. Snakebites worldwide: Management. UpToDate. Aug 2016
- Gold BS. Bites of venomous snakes. N Engl J Med 2002; 347:347.
- Cheng AC. Venomous snakebites worldwide with a focus on the Australia-Pacific region: current management and controversies. J Intensive Care Med 2004; 19:259.
- Blackman JR. Venomous snakebite: past, present, and future treatment options. J Am Board Fam Pract 1992; 5:399.
- Charles Lei. Trastornos causados por mordedura por víboras venenosas y exposición a animales marinos. Harrison. Principios de Medicina Interna, 19e. Cap 474

